To blttjr motor



M. HIRSCH.

ELECTRICAL SYSTEM FOR MOTOR VEHICLES AND THE LIKE.

APPLICATION FILED APR. 30. 1919.

1,352,266. PatentedSept. 7,1920.

INVENTOR MORRIS HIRSCH ATTORNEY UNITED ST T s;-

MORRIS HmscH, or NEW roan, 'N. i ass maoa: T0 iiraua moron 1 m,"A=coRroR-Ar1o1v or DELAWARE.

PATENT OFFICE.

nrrLrAuoE COM- .EnEoTRIcAL-sYsTnrr ron moroa-vnnrotns AND THE LIKE.

incubation fiied i a iu- 30,

T 0 all whom it may concern: a I

Be it known that I,;MoriRIs Hrnsorr, a citizen oflthe United States, and a resident of the.b0rou h of Manhattan, in the county, city, and tate of New York, have invented certain, new and useful Improvements in Electrical Systems for Motor-Vehiclesand' the like, of which the following is a specification 3 I i This invention relates to electrical devices more particularly for internal combustion en ines-on motor vehicles. I Y

aneofthe objects of'thisinventionis to provide a simple and compact ignition de,-'

vice which shall be economical and dependable in use for widely varying speeds of the engine. I Q g Another object is to provide a reliable system of the abovetype which shall generate electrical current ofajthe proper characteris tics, which shall distribute'said current in accordance with requirements, and. which shall in particular produce an ignition spark of roper intensity for operation at different en ine speeds.

ther objects will be in part obvious and in part-pointed out hereinafter. t

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the constructionhe're inafter set forth, and the scope of the application of which will be indicated in the fol: lowing claims.

Referringnow to the accompanying drawings wherein are shown one or more of various possible embodiments of the several features ofthis invention, Figure 1 is a diagrammatic View showing the contacts in one position; Fig. 2 isa detail View of the contact portion in another position; Fig. .3 is a fragmentary detail view in isometric projection of my support and Fig. 4 is a View similar 'to Figl 1 of a modified "form of my invention, showing the breaker contacts in a third position.

Similar reference characters refer to similar parts" throughout the-different Views of the drawings. 7

Referring now to Fig. l of the drawings I have shown a generator lot the type commonly employed on motor vehicles. This specificationof Petters-Patch- Patented Sept. 7, 1920.

1919. Serial no. 295,715.;

generator is connected through {a switch 2 preferablyofthe automatic type commonly employed in this-relation, to; connect it to the storage battery 3 when said switch 2 is closed. As my invention does not reside in this switch its details are neither shown nor described. e

Both the generator the battery sup ;;ply ma1ns 35;;and 35 fro1n which-currentis led to 'translatingdevices such as lamps 4, a switch 5-be1ng in each lamp circuit, in ac cordance with usual practic The generator is preferably;-provided with a shunt field 6 which has in circuit therewith the resistance which resistance is short 'circuited wlien contacts 8;9 are closed. My regulatoroperates on the vibratory principle,- alternately cutting the resistance 7 into and out of circuit at'a rapid rate thus causing the voltage ofthe-generator to fluctuate rapidly between narrow limits with respect to the voltage for which the; machine is to be regulated. As thespecific regulating means take n by itself is not my invention, being described and claimed in the patent to Boury No. 1,133,000, granted March 23, 1915, further description of the details of this regulating system will be dispensed with, except in so far as it is involved in certain. novel combinations described below.

Referring further to Fig. '1 of the drawmaticview an internal combustion engine 10 havingsparlrplugs 11 connected-to the secondary 12 of an induction coilwho'seprimary is shown at 13 connected at one end to main 35 andat the other-to one of breaker contacts 1'-1 15, which latter will be describedmore fully below. i v

I preferably employ a single cam 16 driven at a rate proportional to that of the generator 1 preferably by direct connection to the generator shaft as shown in Fig. 2. This cam performs the two functions of al tcrnately closing and opening both the regulator contacts 8-9 and the ignition breaker contacts 14l15.

To bring about this action I provide a vibratory support 17 in the form of a leaf spring clamped near one end as at 18 and its lower surface at a substantial distance from the clamp 18. Near itsfree endthe support 17 is preferably provided with a def r u n .s an sr fi ,Qtthe tect sanslv insulatiiig"washers 24 and 25 one on each side of the support. On the lower-surface of contact 14 I preferably provide a binding post 26-218- clearlyshown in Fig.- 2 jwhich" binding-post is? connected to one endfofthe 'primary ignitioncoil 13f'as shown in the drmvings' 1 Secured' to the support 17' and insulated therefrom r by insulating block 27 I" provide a leaf spring member 28 of a gi'eatei-"fl exil" I bility than the support 17. I The leaf s ring extends I approximately in; parallelism" tof-the' is preferably *formed suiiicie'ntlyp v'vide to allow for an opening 29 therein; through which springf28' passes free contact with said -deflection. It thus appears. that" whereas the body of'sp'r'ing 28 'is'below port 17 the free fen'd' of'saidspring hxtend I abovethe. freeend 21" f the-support regulator contact8 which co'iipeifates I regulator contact 9, is mounted upon the p per surface of spring 28, and the tremity'o'f saidlspring Iprovide'the ignition breaker-contact '15, "for cooperation "contact-"1' 1; The relati e; dimensions-,oI f-the parts-are so designed thatin' responseto the. V I II I I I t I gr per this distance the small'e'r j'diiringf em: 1' revolution qtphespreill Bethe p 15 turning of 'cam' 16; contacts; 8 +9' close and contacts l4' 15jo pe'n at"th'e same instant, and -'vice A versa'; "Ijhe usual condenser shown I conventionally at in Fig; *2 bridges 'contact-S .t T: v al Asiii the'fBoury patent ab ve rferredito g I preferably provide a device for exercisinging 'the cam'16 when the latter rotatesfat speeds below the inherent frequency of support. By way'of exanipla 'I have shown for tl is'purpose the specific. means employed in Fig. 10 of Boury. This means comprises" a mass 30 adapted to "slide uponarod 311. which is "fastened tofthe; support 17' and.

which has -=cu shions"32: and *33-in6unted' l contacts BEST AVAILABLE com 18 being rigidly mounted within said easing. This casing may be moved together with itsLcI iiinp IEKby"anyg clcsired'ineansl (not shown the spring 28 in :i-an:extneme'positiongxitireflowst portion of cam 16 being in contact therewith. In opesetieexthefie 16 being e ed-i the generator which in turn is driven froril the engine,ithis"cam will rotate at a speed proportional to that of the generator and of course also proportionaltothat of'the en- .gine." the cam turns frornf the position f'shown in Fig. 1': it raises spring arm '28 by 1? deflecting it about'fits support-27 "thus clos I ing' contacts 8 9 "and s in' iult an'eously openin contacts, 145-15. I A "further tiirningi'of. the ,cam causes the lifting ,efiec'tfo'f the cam to be transmittdthrough closed contacts I I A I @8-9 to the support 17 which support be bottomof support l "Pa'nd the defleeci n-20 I I I I *clainped 'at""18. "In" thi'sjcontinue'd ira'ising' operation contacts comes; deflected 'with; respece" to I the "end Fig; 23* fl fter his passa e ergme highest portion of the earn the shpport 17 tends to restore itself 'toits pbsition siesta squint;

The-"' 'rium, but as the speed of rotation of'the with;

s ri f neeii t -by eeen bf th **adde'dfinertiaofmass ee dqesg i ran back enough to follow the outline of the shaft AO"in propoi tioii to its 'speedf ThIe closed. I

contacts S -9' together "the 7 sistan ce 7 iis ishort cir cuited; current; 1' i passesdrom'the generator to'i' inairi 35 u. braiding-effectupon tliefsu'pport-"fi', supp r:mednmct' order 'to' prevent this support from 'f ll wi p 9, contact 8, spring 2 8'a n'd lead to the 5 nd. be 9 e sweeten-lies an? e e s dfl eiei h the eerie-d1 i, contact and thereIf re'Q the 'pe'r iod' during which the resistance 'isi'short-circuited, the I 'etei in r fif ei e p if w 'fbi q "wealgenth'e' fielfd bringinggfabout fr egu il yf est mtv ltese 1 he" iprerti i lassl 'efit s being. s 0 ated. t6 c jf t eliai bov de cr ed. t giit en b elserf entw l ewe i -nl 7' l d. posi bn "whi e seg' le 89' are open and vice versa, i sin s e g pthe period. 1 iyflimmishes', t q lmisi h lation gfor I substantia increase in speed will increase the rbjp i- I 'tionof the perigdthatcontacts fared dur n any. r velutjmnj j, the; cum- I The e s rpe tfl t hi in l$.,[. t

100 cam and reniains in' oscillation about a mean 1 apparent, enables the spring end 28 to over.- take the support end-21 and to move the contact into engagement with contact 14 after shorter range of movement thanat lower-speeds.

prior to opening is increased.

The parts arepreferably so proportioned that as the speed increases the said 1ncreasing fractions of lthe lessening cameriods'shall remain substantially constant.

Vhen contacts" 14-15 are" closed the current passes from the generator 1 through main 35, condu'ctor 34',spring '28, contact 15, contact 14, primer .coil' 13 and through the other main 35 ack to thegenerator. The

periods of closure of -contacts 14-15 prior to opening being thus substantially constant for widely varying speeds of the engine and generator,- an ignition s ark of substantially constant intensity-will evolved'regardless 1 of the speed.

If instead of allowinga substantially con stant period for building up the ma netlc flux in the primarg coil, the source o substantially consti mtivoltage be connected to the coil prior t'ofeaeh break for an interval proportional toms}; 'of an engine revolution, it is obvious that with increasing speeds the period of building up fluxin theprimary uent lessening'- would diminish with. con 7 of spark intensity and atten ant difficulties. Bymy invention, a source of constant voltage supplies a substantially constant ignition regardless of the speed.

in theirplace I provide preferably insulat-' ing stops 42 and 43 occu' ying the same location as contacts 8-9 in The modification shown in Fig; 4 differs from that shown in Fig. 1 mainly in the use of third-brush regulation in p ceof the vibratory voltage regulation. In 4 I have provided generator 1 with an auxiliary thirdsbrush 41 which connects the field 6 with. the main brush 44. The regulator con-' tacts 89 are of course dispensed with and ig. 1. Fig. 4 is in other respects the same as Fig. 1 and the operation of this species is apparent from the description of the operation 1 above It will thus be seen that there'is herein described apparatus in whiclr'the several features of this invention'are, embodied, and which apparatus in its action attains the various objects of the invention and is well suited to meet the requirements of practical use. As many changes could be made in the -'above construction and many apparently widely different embodiments of this invention could be. made without departing from the scope thereof, it is intended that all matter contained in the above description or Thulgjas the speed increases, the portion of the'perioil'tiuring a revolution of the cam I that the ignition breaker contacts are closed shown'in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Having-thus described my invention, what IclaiI n as new and desire to secure by Letters Patent is:

1. In combination, aninternal combustion engine, an ignition system therefor, 1n-

" eluding a regulated generator, a breaker cam driven thereby, aprimary coil connected to ratus including breaker contacts, and a single cam or the like for operatingboth said regulator and said breaker contacts.

3. In combination, a variable speed eng1ne, a generator driven therefrom, a cam driven at the same speed as said generator, a vibratory regulator for said generator,

having-a contact actuated by said cam, and

ignition apparatus for said engine including a breaker contactialso actuated by said cam.

4. In' combination, a variable speed engine, a, generator driven therefrom, a cam.

driven from said generator, a vibratory regulator for said generator, ignition apparatus for said engine, including a breaker, the contacts of said regulator, andthose of said breaker being all reciprocated by the action of said cam. 1

5. In combination, a variable speed engine, a generator driven therefrom, a cam.

driven from said generator, a pair of arms 'actuated by said cam, each of said arms hearing a vibratory regulator contact for said generator and an ignition breaker contact.

" 6. In combination, a variable speed engine, a generator driven therefrom, a vibratory regulator for said generator having a frequencywproportional to the speed of "said generator, ignition apparatus forsaid engine, including a breaker,'and means connecting said regulator with said breaker to close the contacts of the latter substantially when those of the former open, and vice versa.

7. In combination, a variable speed engine, a generator driven therefrom, an. igni tion system for said engine, including a single breaker, means to lengthen the period of closure -of said; breaker with increase of speed, a vibratory contact voltage regulator for said generator and means. connecting said breaker with said regulator, to close the contacts of the latter when those of the former open, and vice versa.

8. In combination, a variable speed engine, a generator driven therefrom, an ignition system for said engine including a breaker, a vibratory voltage regulator for said generator, and means for causing the ratio of theperiod of closure to'that of opening of the contacts of said breaker to vary directly as the speed of the engine, and to cause said ratio with respect to the contacts of said regulator to vary inversely as the speed of said engine.

9. In combination, a variable speed engine, a generator driven therefrom, an ignition system for said engine including a breaker, a vibratory voltage regulator for said generator, said breaker having an operating cam, said cam also operating said regulator, and means for causing the ratio of the period of closure to that of opening of the contacts of said breaker to vary directly as the speed of the engine, and to cause said ratio with respect to the contacts of said regulator to vary inversely as the speed of said engine.

10. In combination, a variable'speed engine, a generator driven therefrom, an igni-- tion system for said engine including a breaker, a vibratory voltage regulator for said generator, and means'for causing the closing phase of the contacts of said breaker, and the opening phase of the contactsof said regulator to remain substantially constant in duration for varying engine speeds.

lli A combined ignition breaker and vibratory regulator comprising a vibratory support a spring having one, part secured thereto to vibrate therewith but insulated therefrom, one of said latter elements having a deflection to dispose the free ends of said elementsin the relation opposite to that in which they are secured to each other,cooperating breaker contacts on one side of said deflection, cooperating regulator contacts on theother side of said deflection, and

cam for actuating said support-and said free end of said spring above the free end of said support, cooperating breaker contactsone on each of said free ends, regulator contacts, one on said support and one on said spring; the former contact being above the latter for cooperatiop, ene of said breaker and regulator contactsbeing insulated from themember ,onwhich it is mounted, and a cam for actuating said support and said spring at a point in proximity to said regulator contacts.

In testimony whereof I have si ned my name to this specification this 23 day of April, 1919.

Mortars mason 

